INDEPENDENT SUSPENSION AXLE TYPE DIFFERENTIAL HAVING A RIGID AXLE TYPE DIFFERENTIAL FUNCTION AND METHOD CONTROLLING THE DIFFERENTIAL

摘要

PURPOSE: An independent suspension axle-type differential having a rigid axle-type differential function and a control method thereof are provided to secure smooth off-road travel and improve riding comfort. CONSTITUTION: An independent suspension axle-type differential(21) having a rigid axle-type differential function includes an axle type selection unit restricting vertical shake of first and second constant velocity joints(27,29) and making the first and second constant velocity joints selectively form a rigid axle type and an independent suspension axle type. The axle type selection unit includes a selection unit(31) operating by a driver; a hydraulic pump(33) driven or stopped to produce and supply hydraulic pressure or discharge hydraulic pressure according to the selection operation of the rigid axle type and the independent suspension axle type of the selection switch; and first and second hydraulic cylinders(35,37) interposed between both sides of a differential housing(39) and the first and second constant velocity joints, to restrict the vertical shake of the first and second constant velocity joints by operating by the hydraulic pressure supplied from the hydraulic pump.